Perhaps you should try some spelling variations:
dong thanh » truong thanh
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
theo chu » theo chieu, cho chu, chao chu
chu sang » chu bang, thu sang, chieu sang
cua dung » cua dang, cua dong, qua dung
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sang - ((hanh tang) OR (hanh mang)) cua dung ((cong trinh) or (dong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sang - ((hanh tang) OR (hanh mang)) cua dung ((cong trinh) OR (dong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sang - ((hanh tang) OR (hanh mang)) cua dung ((cong trinh) or (dong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chu sang - ((hanh tang) OR (hanh mang)) cua dung ((cong trinh) or (dong thanh)) toan ban*.